Application: Differential pressure regulator for extended heating systems and industrial applications. Differential pressure set points Δp from 0.05 to 10 bar · Valves DN 15 to 250 Pressure rating PN 16 to 40 · Suitable for liquids and vapors from 5 to 350 °C as well as for air and non-flammable gases up to 80 °C

For installation in bypass or short circuit pipe. The valve opens when the differential pressure rises. Adjustible setpoint.

• Nominal diameter DN 15…250
• Nominal pressure PN 16…40
• Globe valve with flanges single seat balanced
• Valve body made of cast iron EN-GJL-250, Spheroidal graphite iron EN-GJS-400-18-LT, Cast steel 1.0619 or stainless steel 1.4408
• Reduced Kvs-values available
• 42-20 – Setpoint 0.2 bar · 0.3 bar · 0.4 bar · 0.5 bar fixed 
• 42-25 – 0.05 to 0.25 bar · 0.1 to 0.6 bar · 0.2 to 1 bar · 0.5 to 1.5 bar · 1 to 2.5 bar · 2 to 5 bar · 4.5 to 10 bar
• Control connection external

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Datasheet

Information Sheet: Series 42 Self-operated Regulators · Type 42-20 and Type 42-25 Differential Pressure Regulators